Bruce Allen wrote: > Hi Loic, > >> [...] >>> >>> In a system with 24 x 500 GB disks, I would like to have usable >>> storage of >>> 20 x 500 GB and use the remaining disks for redundancy. What do you >>> recommend? If I understand correctly I can't boot from ZFS so one or >>> more >>> of the remaining 4 disks might be needed for the OS. >>> >> This is (in my opinion) probably the only real issue with the X4500. >> The system disk(s) must be with the data disks (since there are "only" >> 48 disks slots) and the two bootable disks are on the same controller >> which effectively make this controller a single point of failure (there >> are easy ways to move the second system disk to another controller, but >> you still need a working "first" controller to boot). > > Can you boot from a USB device? You can have an inexpensive RAID-1 USB > device for the root and OS.
FWIW: Other solutions can boot from USB, Flash, ... and provide the 48 drive capability. -- Joseph Landman, Ph.D Founder and CEO Scalable Informatics LLC, email: [EMAIL PROTECTED] web : http://www.scalableinformatics.com http://jackrabbit.scalableinformatics.com phone: +1 734 786 8423 fax : +1 866 888 3112 cell : +1 734 612 4615 _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
